Problem with the key to the labyrinth (may contain spoiler)

[Dror21]

Hi.
I have a problem with that mission. I finished the mission of the key to close the portal. when i went to the Nexy's and i chatted with the demoness, but eventually i get no key! nothing! and i'm trying to talk to the key keeper and he says that he gives the key only with the demoness permission... but i donwt have any option to ask for the key from her!

what shoud i do next?? i really don't know..

PLZ help cuz i can't continue playing

P.S - a great game!!

Dror